From dae85d103fae8b7247667f2a621fd245f95b5db4 Mon Sep 17 00:00:00 2001
From: Michael Orlitzky <michael@orlitzky.com>
Date: Thu, 6 Oct 2016 18:10:10 -0400
Subject: [PATCH] Test that vec() is a no-op on vectors.

---
 src/dunshire/matrices.py | 38 +++++++++++++++++++++++++++-----------
 1 file changed, 27 insertions(+), 11 deletions(-)

diff --git a/src/dunshire/matrices.py b/src/dunshire/matrices.py
index 1e0f2a5..7bfc429 100644
--- a/src/dunshire/matrices.py
+++ b/src/dunshire/matrices.py
@@ -109,18 +109,34 @@ def vec(real_matrix):
 
     EXAMPLES:
 
-       >>> A = matrix([[1,2],[3,4]])
-       >>> print(A)
-       [ 1  3]
-       [ 2  4]
-       <BLANKLINE>
+        >>> A = matrix([[1,2],[3,4]])
+        >>> print(A)
+        [ 1  3]
+        [ 2  4]
+        <BLANKLINE>
 
-       >>> print(vec(A))
-       [ 1]
-       [ 2]
-       [ 3]
-       [ 4]
-       <BLANKLINE>
+        >>> print(vec(A))
+        [ 1]
+        [ 2]
+        [ 3]
+        [ 4]
+        <BLANKLINE>
+
+    Note that if ``real_matrix`` is a vector, this function is a no-op:
+
+        >>> v = matrix([1,2,3,4], (4,1))
+        >>> print(v)
+        [ 1]
+        [ 2]
+        [ 3]
+        [ 4]
+        <BLANKLINE>
+        >>> print(vec(v))
+        [ 1]
+        [ 2]
+        [ 3]
+        [ 4]
+        <BLANKLINE>
 
     """
     return matrix(real_matrix, (len(real_matrix), 1))
-- 
2.43.2